JPH0749041B2 - Dental work handpiece - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dental work handpiece having a rear grip portion and a hose connecting portion attached to the grip portion, and further comprising an image conductor and a light guide. A wave body, for example, of the type in which an image recording device for video signals is provided.

[0002]

2. Description of the Prior Art Such a working handpiece is known from DE-A-2208902. In this case, both the image and light conductors are attached to the handpiece on the outside. as a result,
Various drawbacks result. That is, such a handpiece is bulky due to the conductor attached to the outside and the connected hose, which makes handling extremely troublesome and unsanitary. Leads for the image conductor and the light guide may be housed in the hose. This lead wire is configured as a glass fiber bundle, for example. Such glass fiber bundles are likewise bulky and almost inflexible, that is to say at risk of breaking, which makes them even more difficult to handle. In such a configuration, since the image recording device must be arranged outside, the image and the supplied light rays are deteriorated due to the long transmission distance. Furthermore, if it is not desired to worsen the transmission output, the conductor and the hose must be removed for maintenance, cleaning and disinfection. However, removing conductors and hoses is also cumbersome.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to improve a handpiece for transmitting such an intraoral image so that the image recording device does not get in the way, and the size, shape and handling of the image recording device are general. The object is to provide a working handpiece that corresponds to a dental instrument.

[0004]

In order to solve this problem, in the constitution of the present invention, the image conductor and the optical waveguide are incorporated in the working handpiece, and each extends in the longitudinal direction of the working handpiece. , Further laterally behind the diverting device leading from the working handpiece to the outlet, the gripping part being rotatable with respect to the working handpiece about a longitudinally oriented axis of rotation, An optical waveguide is eccentrically arranged on the working handpiece such that a light source rotatably supported on the grip portion is arranged in alignment with the optical waveguide. did.

[0005]

The advantage of the present invention is that, in a working handpiece having an image recording device built therein, the above-mentioned drawbacks are eliminated, and a direct inspection of a treatment space which has been difficult to reach in the past, such as a root canal, is made possible. It improves diagnosis and communication between dentist and patient, allows individual placement on the dentist's or nurse's side, based on shortened lead distances, minimum power requirements and increased image quality. It is ensured that it is integrated as an additional instrument into a general-purpose instrument holding device and instrument accommodating device, hygienic maintenance and cleaning and disinfection are ensured, and an independent energy supply is possible. In addition, documentation of the course of treatment will be implemented.

No additional optical equipment, such as a reflector, is required. Based on direct inspection by indirect image formation,
Ergonomic work is possible and also hygienic work is possible due to the increased distance between the healer and the spraying point.

Further, according to the present invention, the working handpiece can be selectively rotated with respect to the grip portion, and thus the working handpiece can be placed in the body cavity portion to be observed without changing the position of the grip portion. It is possible to adapt regardless of the position of the grip portion. In this case, satisfactory lighting is guaranteed. This is because the light source is always aligned with the selective rotational position.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 shows a dental work handpiece with the reference numeral 1. This working handpiece has a head 2 with a drive part, for example a turbine with a tool 2a inserted therein. Reference numeral 6 is an exit of the image conductor 3 and the optical waveguide 4.

FIG. 2 also shows a dental spray-type working handpiece with the reference numeral 1. The working handpiece has an image conductor 3 and a light guide 4 therein. As shown in both examples, the working handpiece 1 is provided with a grip portion 8 which is rotatable inside it about an axis A and is directed towards the light guide 4. It has a light source 7, an objective lens 9 and a video camera 10. At the front end is arranged a light redirecting device 5 for the image conductor and / or the light guide, which light redirecting device may be a prism or an angle mirror. A hose connection 11 is provided at the other end of the grip portion 8, and this hose connection 11
Serves for the connection of the hose 12. The hose connection 11 has an energy supply, optionally a conduit for air and water of a spray-type working handpiece, and leads for the image.

In the spray type working handpiece shown in FIGS. 3 and 4, the image conductor 3 and the optical waveguide 4 are eccentrically arranged in the working handpiece 1, and the cross-sectional area of the image conductor 3 is small. It is formed larger than the cross-sectional area of the optical waveguide 4. In this case, on one or both sides of the longitudinal center plane containing the image conductor 3 and the light guide 4, conduits 15, 16 for air and water are arranged parallel to the image conductor 3 and the light guide 4. As a result, all conduits and conductors are stored in a space-saving manner. Both conduits 15,1
The outlet 6 is arranged on the side of the working handpiece 1 on which the outlets for the image conductor 3 and the light guide 4 are provided and is directed towards the treatment site. The working handpiece 1 has a circular cross-sectional shape and may extend straight. The working handpiece 1 is formed in a cylindrical shape. A front lens 13 and a scattered light diaphragm 1 are provided in the middle of the image conductor 3.
4 and 4 may be incorporated. The grip part 8 is attached to the working handpiece 1 and possibly the hose connection 1
It is also rotatable relative to 1, so that its position can be adapted to the space situation during treatment. The grip part is the work handpiece 1 and the hose connection part 11.
It may be separable from. This allows multipurpose use, preferably by exchanging individual parts with the same dimensions,
Hygienic maintenance, cleaning and disinfection are possible.

In the block circuit diagram shown in FIG. 5, reference numeral 20 denotes a light source 7, an objective lens 9, and a video camera 10.
And the control part 23 for the required cold light (Kaltricht). Reference numeral 21 designates a connected device, that is, a hose-side connection portion provided with a printer 25, a character generator 26, a monitor 27, a recorder 28, an image memory 29, and another signal processing system selectively or in combination with each other. is there. The control unit to which it belongs has the reference numeral 24. For use in a spray-type working handpiece, reference numeral 30 designates a control device for the spray mediums air and water, which are supplied via conduits 15, 16. Reference numeral 22 designates a working handpiece with the image conductor 3, the light guide 4 and the ducts 15, 16 for spraying.

FIG. 6 shows the dental unit 35 in its installed state according to the invention. A monitor 27 is mounted on the unit. The image controller is shown at 38, the storage controller is shown at 39, and the media control and supply device is shown at 40. 36
Is an instrument store for instrument 37, one of which corresponds to the invention. Reference numeral 41 indicates an interface for the connected instruments 25-29.
Reference numeral 42 designates an operating element, for example a foot starter.

FIG. 7 shows how the monitor 27 and the instrument housing 36 with the instrument 37 can be spatially assigned to the treatment chair 45, in this case the monitor 27.
Is mounted in the instrument storage section 36.

[Brief description of drawings]

1 is a side view of an embodiment of the present invention in a working handpiece with a tool.

FIG. 2 is a vertical cross-sectional view of another embodiment of the spray type work handpiece.

FIG. 3 is a longitudinal sectional view showing a part of FIG. 2 in an enlarged manner.

4 is a sectional view taken along line IIIa-IIIa in FIG.

FIG. 5 is a block circuit diagram of the present invention with connected instruments.

FIG. 6 is a block circuit diagram showing an assembled state according to the present invention in a dental unit.

FIG. 7 is a diagram showing a dental treatment space together with the spatial correspondence of the present invention.

[Explanation of symbols]

 1 Working Handpiece 2 Head 2a Tool 3 Image Conductor 4 Optical Waveguide 5 Light Transforming Device 6 Exit 7 Light Source 8 Grip Part 9 Objective Lens 10 Video Camera 11 Hose Connection 12 Hose 13 Front Lens 14 Scattering Light Stop 15, 16 Conduit 21 Connection Part 22 Work Handpiece 23, 24 Control Device 25 Printer 26 Character Generator 27 Monitor 28 Recorder 29 Image Memory 30 Control Device 35 Unit 36 Instrument Storage 37 Instrument 38 Image Control Device 39 Storage Control Device 40 Media Control Device 41 Interface 42 Operation element 45 Treatment chair

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-57-209046 (JP, A) Actual development Shou 60-129910 (JP, U) Actual development HEI 1-172816 (JP, U)

Claims (17)

[Claims] 1. A dental work handpiece (1)
The rear grip portion (8) and the grip portion
Provided with a hose connection part (11) attached to (8)
The image conductor (3) and the optical waveguide (4)
In the type in which an image recording device consisting of
And the image conductor (3) and the optical waveguide (4) are working hands.
It is built into the piece (1) and has a working hand.
A deflection device that extends in the longitudinal direction of the piece (1)
Exit from working handpiece (1) laterally behind (5)
(6) leading to the grip part (8)
With respect to the handpiece (1)
The optical waveguide is rotatable about the axis of rotation (A).
(4) is eccentrically arranged on the work handpiece (1)
The rotation axis (A) is attached to the grip part (8).
The light source (7) rotatably supported around the center is an optical waveguide.
Characterized by being arranged so as to match with (4)
A dental work handpiece. 2. The turning device is an optical turning device (5).
The work handpiece according to claim 1, which is formed by
Source. 3. The deflecting device (5) is a prism or an array.
The mirror mirror 1 is formed by a single mirror.
The work handpiece described in 2. 4. The deflecting device is an optical waveguide element or glass.
4. A fiber bundle formed by a fiber bundle.
The working handpiece according to any one of 1. 5. A light source (7) on the grip portion (8).
In addition to the converging device (9) and the video camera (10)
A photographing device such as an arranging device is provided.
The working handpiece according to any one of claims. 6. The grip portion (8) is connected to the hose.
6. Rotating with respect to the connecting part (11), the device according to claim
The working handpiece according to any one of items 1 to 7. 7. The grip portion (8) is a work hand.
Piece (1) and / or said hose connection (11)
7. Any one of claims 1 to 6 separable from
Work handpiece described in paragraph. 8. A beam of light is attached to the hose connecting portion (11).
Hose (1
2) and the conductor for the image are connected.
The handpiece according to any one of 1 to 7. 9. The conductor is a printer (25), a document is generated.
Device (26), monitor (27), recorder (28) or
Familiar with signal processing devices such as image memory (29)
The work hang according to any one of claims 1 to 8.
Dopeace. 10. An image conductor (3) and an optical waveguide (4).
Are eccentrically arranged on the work handpiece (1)
The work han according to any one of claims 1 to 9.
Dopeace. 11. The cross-sectional area of the image conductor (3) is such that
Claim set larger than the cross-sectional area of the body (4)
Item 1. The work handpiece according to any one of items 1 to 10.
Su. 12. A work conductor (1) is provided with an image conductor.
Of the longitudinal center plane including (3) and the optical waveguide (4).
One conduit each for water or air on one or both sides
(15, 16) are arranged in the conduit (15, 1)
The image conductor of which the exit of 6) is the working handpiece (1)
An outlet (6) is provided for (3) and the light guide (4).
It is placed on the side of the
The product according to any one of claims 1 to 11,
Work handpiece. 13. The working handpiece (1) has a circular cross section.
Any of claims 1 to 12 having a surface shape.
The work handpiece according to item 1. 14. The working handpiece (1) extends straight.
According to any one of claims 1 to 13
Working handpiece. 15. The working handpiece (1) has a cylindrical shape.
15. Any one of claims 1 to 14 having a shape
The listed work handpiece. 16. The working handpiece (1) is of a spray type.
Any of claims 1 to 15, which is a handpiece.
The work handpiece according to item 1. 17. A front end of the working handpiece (1).
A tool (2a) can be inserted into the enclosure, and the tool (2a)
a) is a drive arranged on the working handpiece (1)
Any of claims 1 to 16 which is drivable by
The work handpiece according to item 1.